Search completed in 1.04 seconds.
nsIDOMGeoPositionCoords
last changed in gecko 1.9.1 (firefox 3.5 / thunderbird 3.0 / seamonkey 2.0) inherits from: nsisupports attributes attribute type description latitude double the user's current latitude, in degrees. read only. longitude double the user's current longitude, in degrees. read only. altitude double the user's current altitude, in meters. zero if the device doesn't support altitude detection. read only. accuracy double the accuracy of position information, in meters. read only. ...
GeolocationPosition.coords - Web APIs
the geolocationposition.
coords read-only property returns a geolocationcoordinates object representing a geographic position. it contains the location, that is longitude and latitude on the earth, the altitude, and the speed of the object concerned, regrouped inside the returned value. it also contains accuracy information about these values. syntax let coord = geolocationpositioninstance.
coords value a geolocationcoordinates object instance. specifications specification status comment geolocation apithe definition of 'geolocationposition.
coords' in that specification. recommendation initial specification. ...
Document Loading - From Load Start to Finding a Handler - Archive of obsolete content
er, which corresponds to a docshell and handles most of the data types that mozilla handles internally. nsiexternalhelperappservice if we can't do anything else with a load, we give it to the nsiexternalhelperappservice and let it look for a helper app, put up the "what do i do now?" dialog, and so forth. ...
...ternalhelperappservice if we can't do anything else with a load, we give it to the nsiexternalhelperappservice and let it look for a helper app, put up the "what do i do now?" dialog, and so forth. ...
...nd let it look for a helper app, put up the "what do i do now?" dialog, and so forth. ...
...And 6 more matches
UIEvent.layerX - Web APIs
unless the event occurs inside a positioned element, where the returned value is relative to the top left of the positioned element. syntax var xpos = event.layerx xpos is an integer value in pixels for the x-coordinate of the mouse pointer, when the mouse event fired. ...
...lement, where the returned value is relative to the top left of the positioned element. syntax var xpos = event.layerx xpos is an integer value in pixels for the x-coordinate of the mouse pointer, when the mouse event fired. ...
...r xpos = event.layerx xpos is an integer value in pixels for the x-coordinate of the mouse pointer, when the mouse event fired. ...
...And 6 more matches
UIEvent.layerY - Web APIs
unless the event occurs inside a positioned element, where the returned value is relative to the top left of the positioned element. syntax var ypos = event.layery; ypos is an integer value in pixels for the y-coordinate of the mouse pointer, when the mouse event fired. ...
...ement, where the returned value is relative to the top left of the positioned element. syntax var ypos = event.layery; ypos is an integer value in pixels for the y-coordinate of the mouse pointer, when the mouse event fired. ...
... ypos = event.layery; ypos is an integer value in pixels for the y-coordinate of the mouse pointer, when the mouse event fired. ...
...And 6 more matches
UIEvent.pageY - Web APIs
t relative to the whole document. syntax var pagey = event.pagey; pagey is an integer value in pixels for the y-coordinate of the mouse pointer, relative to the whole document, when the mouse event fired. this property takes into account any vertical scrolling of the page. ...
... pagey = event.pagey; pagey is an integer value in pixels for the y-coordinate of the mouse pointer, relative to the whole document, when the mouse event fired. this property takes into account any vertical scrolling of the page. ...
...er, relative to the whole document, when the mouse event fired. this property takes into account any vertical scrolling of the page. ...
...And 6 more matches
transform - SVG: Scalable Vector Graphics
<a> <b> <c> <d> <e> <f>) transform function specifies a transformation in the form of a transformation matrix of six values. ...
...<d> <e> <f>) transform function specifies a transformation in the form of a transformation matrix of six values. ...
...ion specifies a transformation in the form of a transformation matrix of six values. ...
...And 6 more matches
Using the Geolocation API - Web APIs
t, getcurrentposition() tries to answer as fast as possible with a low accuracy result. it is useful if you need a quick answer regardless of the accuracy. devices with a gps, for example, can take a minute or more to get a gps fix, so less accurate data (ip location or wifi) may be returned to getcurrentposition(). navigator.geolocation.getcurrentposition((position) => { dosomething(position.
coords.latitude, position.
coords.longitude); }); the above example will cause the dosomething() function to execute when the location is obtained. watching the current position if the position data changes (either by device movement or if more accurate geo information arrives), you can set up a callback function that is called with that updated position information. this is done using the watchpositi...
...ur location as you move, or provide a more accurate location as different techniques are used to geolocate you. the error callback function, which is optional just as it is for getcurrentposition(), can be called repeatedly. note: you can use watchposition() without an initial getcurrentposition() call. const watchid = navigator.geolocation.watchposition((position) => { dosomething(position.
coords.latitude, position.
coords.longitude); }); the watchposition() method returns an id number that can be used to uniquely identify the requested position watcher; you use this value in tandem with the clearwatch() method to stop watching the user's location. navigator.geolocation.clearwatch(watchid); fine tuning the response both getcurrentposition() and watchposition() accept a success callbac...
... age for the returned position value (up until this age it will be cached and reused if the same position is requested again; after this the browser will request fresh position data), and a timeout value that dictates how long the browser should attempt to get the position data for, before it times out. ...
...And 4 more matches
nsACString_internal
rarchy. it represents a single contiguous array of characters, which may or may not be null-terminated. this type is not instantiated directly. a sub-class is instantiated instead. for example, see nststring. names: nsastring for wide characters nsacstring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...rectly. a sub-class is instantiated instead. for example, see nststring. names: nsastring for wide characters nsacstring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...ring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...And 3 more matches
nsAString (External)
class declaration this header provides wrapper classes around the frozen string api which are roughly equivalent to the internal string classes. ...
... class declaration this header provides wrapper classes around the frozen string api which are roughly equivalent to the internal string classes. ...
... are roughly equivalent to the internal string classes. ...
...And 3 more matches
nsAString_internal
rarchy. it represents a single contiguous array of characters, which may or may not be null-terminated. this type is not instantiated directly. a sub-class is instantiated instead. for example, see nststring. names: nsastring for wide characters nsacstring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...directly. a sub-class is instantiated instead. for example, see nststring. names: nsastring for wide characters nsacstring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...acstring for narrow characters many of the accessors on nstsubstring are inlined as an optimization. ...
...And 3 more matches
Coordinate systems - CSS: Cascading Style Sheets
screen. this code will be called by the event handler for the various mouse events we watch. displaying the coordinates as we'll see in the html, the inner box (the one we're watching for events on) contains several paragraphs; one for each of the four coordinate systems we'll be reporting on. ...
...the implementation is then quite simple. the variables idx and idy are set to strings with the names of the properties corresponding to the coordinates in the given coordinate system. ...
...d to accept as input a mouseevent and the name of the origin to use when obtaining the coordinates. the implementation is then quite simple. the variables idx and idy are set to strings with the names of the properties corresponding to the coordinates in the given coordinate system. for example, if the value of type is "page", then idx is "pagex" and idy is "pagey". ...
...imple. the variables idx and idy are set to strings with the names of the properties corresponding to the coordinates in the given coordinate system. for example, if the value of type is "page", then idx is "pagex" and idy is "pagey". handling the mouse events set
coords() is called by the event handler for the various mouse events, named update(); this is shown below. function update(e) { set
coords(e, "offset"); set
coords(e, "client"); set
coords(e, "page"); set
coords(e, "screen"); } inner.addeventlistener("mouseenter", update, false); inner.addeventlistener("mousemove", update, false); inner.addeventlistener("mouseleave", update, false); the event handler is in the update() method. it simply calls set
coords() once for each coordinate system, passing in the event that occurred. our ...
nsACString (External)
class declaration <map id="classes" name="classes"><area alt=""
coords="1005,6,1096,54" href="http://developer.mozilla.org/en/nsacstring_(external)" shape="rect" title="nsacstring_(external)"> <area alt=""
coords="980,102,1121,150" href="http://developer.mozilla.org/en/nscstringcontainer_(external)" shape="rect" title="nscstringcontainer_(external)"> <area alt=""
coords="571,198,707,246" href="http://developer.mozilla.org/en/nscstring_external" shape="rect" title="nscstring_external"> <area alt=""
coords="731,198,955,246" href="http://developer.mozilla.org/en/nsdependentcsubstring_external" shape="rect" title="nsdependentcsubstring_external"> <area alt=""
coords="979,198,1123,246" href="http://developer.mozilla.org/en/promiseflatcstring_(external)" shape="rect" title="promiseflatcstring_...
...g/en/nscstring_external" shape="rect" title="nscstring_external"> <area alt=""
coords="731,198,955,246" href="http://developer.mozilla.org/en/nsdependentcsubstring_external" shape="rect" title="nsdependentcsubstring_external"> <area alt=""
coords="979,198,1123,246" href="http://developer.mozilla.org/en/promiseflatcstring_(external)" shape="rect" title="promiseflatcstring_(external)"> <area alt=""
coords="1147,198,1259,246" href="http://developer.mozilla.org/en/nscautostring_(external)" shape="rect" title="nscautostring_(external)"> <area alt=""
coords="5,294,208,342" href="http://developer.mozilla.org/en/nsdependentcstring_external" shape="rect" title="nsdependentcstring_external"> <area alt=""
coords="232,294,475,342" href="http://developer.mozilla.org/en/ns_convertutf16toutf8_external" shape="...
...nscautostring_(external)" shape="rect" title="nscautostring_(external)"> <area alt=""
coords="5,294,208,342" href="http://developer.mozilla.org/en/nsdependentcstring_external" shape="rect" title="nsdependentcstring_external"> <area alt=""
coords="232,294,475,342" href="http://developer.mozilla.org/en/ns_convertutf16toutf8_external" shape="rect" title="ns_convertutf16toutf8_external"> <area alt=""
coords="499,294,779,342" href="http://developer.mozilla.org/en/ns_lossyconvertutf16toascii_external" shape="rect" title="ns_lossyconvertutf16toascii_external"> <area alt=""
coords="803,294,925,342" href="http://developer.mozilla.org/en/nsliteralcstring_(external)" shape="rect" title="nsliteralcstring_(external)"></map> method overview beginreading endreading charat op...
<area> - HTML: Hypertext Markup Language
htmlareaelement attributes this element's attributes include the global attributes. alt a text string alternative to display on browsers that do not display images. the text should be phrased so that it presents the user with the same kind of choice as the image would offer when displayed without the alternative text. this attribute is required only if the href attribute is used.
coords a set of values specifying the coordinates of the hot-spot region. the number and meaning of the values depend upon the value specified for the shape attribute. rect or rectangle: the value is two x,y pairs: left, top, right, bottom. circle: the value is x,y,r where x,y is a pair specifying the center of the circle and r is a value for the radius. poly or polygon: the value is a set of...
...cient. tabindex a numeric value specifying the position of the defined area in the browser tabbing order. this attribute is global in html5. type no effect. browsers ignore it. ...
...a in the browser tabbing order. this attribute is global in html5. type no effect. browsers ignore it. (the w3c 5.3 fork of the html specification defines it as valid, but the canonical html specification doesn’t, and it has no effect in any user agents.) examples <map name="primary"> <area shape="circle"
coords="75,75,75" href="left.html" alt="click to go left"> <area shape="circle"
coords="275,75,75" href="right.html" alt="click to go right"> </map> <img usemap="#primary" src="https://udn.realityripple.com/samples/6a/7e559101b3.png" alt="350 x 150 pic"> result specifications specification status comment referrer policythe definition of 'referrerpolicy attribute' in that specification. candidate recommendation added the referrerpolicy attribut...
Tree Box Objects - Archive of obsolete content
g tree code does when the user double clicks the twisty. the final value that may be returned is 'image' if there is an image in the tree cell and the coordinate corresponds to a location where the image is. of course, in many cases you may not care what part of the cell the coordinate is on and just want the row and column. to go in reverse and get the coordinates of a specific cell, use the get
coordsforcellitem() function. it takes seven arguments, as described below. var x = {}, y = {}, width = {}, height = {}; if (typeof tree.columns != "undefined") column = tree.columns[column]; tree.boxobject.get
coordsforcellitem( row, column, part, x, y, width, height ); the row, column, and part arguments are similar to those returned from the getcellat() function. again, the column should be either ...
...ght ); the row, column, and part arguments are similar to those returned from the getcellat() function. again, the column should be either a string or a column object depending on which version you are using. the cell part type may be used to get the coordinates of either the text, the entire cell, the twisty or the image in the cell. the same values as the getcellat() function are used. the get
coordsforcellitem() function returns the x and y coordinates in addition to the width and height, all as out parameters. next, we'll look at rdf which can be used to automatically populate trees and other elements. « previousnext » ...
Add a hitmap on top of an image - Learn web development
ap name as you used in your usemap attribute above: <map name="example-map-1"> </map> inside the <map> element, we need <area> elements. an <area> element corresponds to a single hotspot. to keep keyboard navigation intuitive, make sure the source order of <area> elements corresponds to the visual order of hotspots. <area> elements are empty elements, but do require four attributes: shape
coords shape takes one of four values: circle, rect, poly, and default. (a default <area> occupies the entire image, minus any other hotspots you’ve defined.) the shape you choose determines the coordinate information you’ll need to provide in
coords. for a circle, provide the center's x and y coordinates, followed by the length of the radius. for a rectangle, provide the x/y coordinates o...
..., if you’re making a hollow circle.) alt a mandatory attribute, telling people where the link goes or what it does. alt text only displays when the image is unavailable. please refer to our guidelines for writing accessible link text. you may write alt="" if the href attribute is blank and the entire image already has an alt attribute. <map name="example-map-1"> <area shape="circle"
coords="200,250,25" href="page-2.html" alt="circle example" /> <area shape="rect"
coords="10, 5, 20, 15" href="page-3.html" alt="rectangle example" /> </map> step 3: make sure it works for everybody you aren’t done until you test image maps rigorously on many browsers and devices. try following links with your keyboard alone. try turning images off. if your image map is wider than abou...
nsITreeBoxObject
void invalidatecell(in long row, in nsitreecolumn col); void invalidaterange(in long startindex, in long endindex); void invalidatecolumnrange(in long startindex, in long endindex, in nsitreecolumn col); long getrowat(in long x, in long y); void getcellat(in long x, in long y, out long row, out nsitreecolumn col, out acstring childelt); void get
coordsforcellitem(in long row, in nsitreecolumn col, in acstring element, out long x, out long y, out long width, out long height); boolean iscellcropped(in long row, in nsitreecolumn col); void rowcountchanged(in long index, in long count); void beginupdatebatch(); void endupdatebatch(); void clearstyleandimagecaches(); attributes attribute ...
...es in, and the units are css pixels. void getcellat(in long x, in long y, out long row, out nsitreecolumn col, out acstring childelt); parameters x the x coordinate y the y coordinate returns row the row index at the coordinates col the nsitreecolumn hit. childelt the pseudoelement hit: this can have values of "cell", "twisty", "image", and "text". get
coordsforcellitem() find the coordinates of an element within a specific cell. void get
coordsforcellitem(in long row, in nsitreecolumn col, in acstring element, out long x, out long y, out long width, out long height); parameters row the index of the row col the nsitreecolumn element the pseudoelement. this can have values of "cell", "twisty", "imag...
GeolocationCoordinates.longitude - Web APIs
nt listener so that when the user clicks on a button, the location information is retrieved and displayed. let button = document.getelementbyid("get-location"); let lattext = document.getelementbyid("latitude"); let longtext = document.getelementbyid("longitude"); button.addeventlistener("click", function() { navigator.geolocation.getcurrentposition(function(position) { let lat = position.
coords.latitude; let long = position.
coords.longitude; lattext.innertext = lat.tofixed(2); longtext.innertext = long.tofixed(2); }); }); after setting up variables to more conveniently reference the button element and the two elements into which the latitude and logitude will be drawn, the event listener is established by calling addeventlistener() on the <button> element. when the user ...
...n, we'll fetch and display the location information. upon receiving a click event, we call getcurrentposition() to request the device's current position. this is an asynchronous request, so we provide a callback which receives as in put a geolocationposition object describing the determined position. from the geolocationposition object, we obtain the user's latitude and longitude using position.
coords.latitude and position.
coords.longitude so we can update the displayed coordinates. the two <span> elements are updated to display the corresponding values after being converted to a value with two decimal places. html the html used to present the results looks like this: <p> your location is <span id="latitude">0.00</span>° latitude by <span id="longitude">0.00</span>° longitude. </p> <b...
HTMLAnchorElement - Web APIs
ent property. htmlanchorelement.type is a domstring that reflects the type html attribute, indicating the mime type of the linked resource. htmlhyperlinkelementutils.username is a usvstring containing the username specified before the domain name. obsolete properties htmlanchorelement.charset is a domstring representing the character encoding of the linked resource. htmlanchorelement.
coords is a domstring representing a comma-separated list of coordinates. htmlanchorelement.name is a domstring representing the anchor name. htmlanchorelement.rev is a domstring representing that the rev html attribute, specifying the relationship of the link object to the target object. note: currently the w3c html 5.2 spec states that rev is no longer obsolete, whereas the whatwg living s...
...ort, protocol, search, and hash, have been moved to the htmlhyperlinkelementutils mixin, and htmlanchorelement implements this mixin. html5the definition of 'htmlanchorelement' in that specification. recommendation the methods blur() and focus(), as well as the properties tabindex and accesskey, are now defined on htmlelement. the following properties are now obsolete: charset,
coords, name, rev, and shape. the following properties have been added: hash, host, hostname, media, pathname, port, protocol, rellist, search, and text. document object model (dom) level 2 html specificationthe definition of 'htmlanchorelement' in that specification. obsolete no change from document object model (dom) level 1 specification. document object model (dom) level ...
HTMLImageElement.useMap - Web APIs
ore about client-side image maps in our learning article add a hitmap on top of an image. usage notes the string value of usemap must be a valid anchor for a <map> element. in other words, this string should be the value of the appropriate <map>'s name attribute with a pound or hash symbol prepended to it. ...
...usage notes the string value of usemap must be a valid anchor for a <map> element. in other words, this string should be the value of the appropriate <map>'s name attribute with a pound or hash symbol prepended to it. consider a <map> that looks like this: <map name="mainmenu-map"> <area shape="circle"
coords="25, 25, 75, 75" href="/index.html" alt="return to home page"> <area shape="rect"
coords="25, 25, 100, 150" href="/index.html" alt="shop"> </map> given the image map named mainmenu-map, the image which uses it should look something like the following: <img src="menubox.png" usemap="#mainmenu-map"> for additional examples (including interactive ones), see the articles about the <map> and <area> elements, as well as the guide to using image maps. example the source for this int...
Hello vertex attributes - Web APIs
elector("p").innerhtml = "shader program did not link successfully. ...
....drawarrays(gl.points, 0, 1); document.queryselector("canvas").addeventlistener("click", function (evt) { var clickxrelativtocanvas = evt.pagex - evt.target.offsetleft; var clickxinwebgl
coords = 2.0 * (clickxrelativtocanvas- gl.drawingbufferwidth/2) / gl.drawingbufferwidth; gl.bufferdata(gl.array_buffer, new float32array([clickxinwebgl
coords]), gl.static_draw); gl.drawarrays(gl.points, 0, 1); }, false); } var buffer; function initializeattributes() { gl.enablevertexattribarray(0); buffer = gl.createbuffer(); gl.bindbuffer(gl.array_buffer, buffer); gl.bufferdata(gl.array_buffer, new float32array([0.0]), gl.static_draw); gl.vertexattribpointer(0, 1, gl.float, false, 0, 0); } window.addeventlistener("beforeunload",...
<map> - HTML: Hypertext Markup Language
n be referenced. the attribute must be present and must have a non-empty value with no space characters. the value of the name attribute must not be a compatibility-caseless match for the value of the name attribute of another <map> element in the same document. if the id attribute is also specified, both attributes must have the same value. ...
...e a non-empty value with no space characters. the value of the name attribute must not be a compatibility-caseless match for the value of the name attribute of another <map> element in the same document. if the id attribute is also specified, both attributes must have the same value. ...
Index
via its address attribute. 489 nsidomgeopositioncallback dom, geolocation, interfaces, interfaces:scriptable, xpcom, xpcom interface reference the nsidomgeopositioncallback interface is called when updated position information is available. you need to implement this interface to accept callbacks after using nsidomgeolocation.watchposition(). 490 nsidomgeoposition
coords dom, geolocation, interfaces, interfaces:scriptable, xpcom, xpcom api reference, xpcom interface reference the nsidomgeoposition
coords interface describes a geographical location. 491 nsidomgeopositionerror dom, geolocation, interfaces, interfaces:scriptable, xpcom, xpcom interface reference the nsidomgeopositionerror interface represents an error that occurred whil...
nsIDOMGeoPosition
osition.idlscriptable this interface describes a geographical location at a specific time. 1.0 66 introduced gecko 1.9.1 inherits from: nsisupports last changed in gecko 1.9.2 (firefox 3.6 / thunderbird 3.1 / fennec 1.0) attributes attribute type description address nsidomgeopositionaddress the address of the user's current location, if available. read only.
coords nsidomgeoposition
coords the user's current position information. read only. timestamp domtimestamp the time at which the reading was taken. read only. see also using geolocation ...
XPCOM Interface Reference
mcanvasrenderingcontext2dnsidomchromewindownsidomclientrectnsidomdesktopnotificationnsidomdesktopnotificationcenternsidomelementnsidomeventnsidomeventgroupnsidomeventlistenernsidomeventtargetnsidomfilensidomfileerrornsidomfileexceptionnsidomfilelistnsidomfilereadernsidomfontfacensidomfontfacelistnsidomgeogeolocationnsidomgeopositionnsidomgeopositionaddressnsidomgeopositioncallbacknsidomgeoposition
coordsnsidomgeopositionerrornsidomgeopositionerrorcallbacknsidomgeopositionoptionsnsidomglobalpropertyinitializernsidomhtmlaudioelementnsidomhtmlformelementnsidomhtmlmediaelementnsidomhtmlsourceelementnsidomhtmltimerangesnsidomjswindownsidommousescrolleventnsidommoznetworkstatsnsidommoznetworkstatsdatansidommoznetworkstatsmanagernsidommoztoucheventnsidomnshtmldocumentnsidomnavigatordesktopnotificationns...
Geolocation.clearWatch() - Web APIs
geolocation.clearwatch() method is used to unregister location/error monitoring handlers previously installed using geolocation.watchposition(). syntax navigator.geolocation.clearwatch(id); parameters id the id number returned by the geolocation.watchposition() method when installing the handler you wish to remove. ...
Geolocation.getCurrentPosition() - Web APIs
ons object. options includes: maximumage: integer (milliseconds) | infinity - maximum cached position age. timeout: integer (milliseconds) - amount of time before the error callback is invoked, if 0 it will never invoke. ...
Geolocation.watchPosition() - Web APIs
s a geolocationpositionerror object as an input parameter. options optional an optional positionoptions object that provides configuration options for the location watch. return value an integer id that identifies the registered handler. the id can be passed to the geolocation.clearwatch() to unregister the handler. ...
GeolocationPosition - Web APIs
the geolocationposition interface represents the position of the concerned device at a given time. the position, represented by a geolocationcoordinates object, comprehends the 2d position of the device, on a spheroid representing the earth, but also its altitude and its speed. properties the geolocationposition interface doesn't inherit any properties. geolocationposition.
coords read only secure context returns a geolocationcoordinates object defining the current location. geolocationposition.timestamp read only secure context returns a domtimestamp representing the time at which the location was retrieved. methods the geolocationposition interface neither implements, nor inherits any methods. specifications specification status comment geol...
Geolocation API - Web APIs
rgin: .5rem 0; } html <button id = "find-me">show my location</button><br/> <p id = "status"></p> <a id = "map-link" target="_blank"></a> javascript function geofindme() { const status = document.queryselector('#status'); const maplink = document.queryselector('#map-link'); maplink.href = ''; maplink.textcontent = ''; function success(position) { const latitude = position.
coords.latitude; const longitude = position.
coords.longitude; status.textcontent = ''; maplink.href = `https://www.openstreetmap.org/#map=18/${latitude}/${longitude}`; maplink.textcontent = `latitude: ${latitude} °, longitude: ${longitude} °`; } function error() { status.textcontent = 'unable to retrieve your location'; } if(!navigator.geolocation) { status.textconte...
HTMLAreaElement.referrerPolicy - Web APIs
the fragment, password, or username). this case is unsafe as it can leak path information that has been concealed to third-party by using tls. examples <img usemap="#maparound" width="100" height="100" src="/img/logo@2x.png" /> <map id="mymap" name="maparound" />> var elt = document.createelement("area"); elt.href = "/img2.png"; elt.shape = "rect"; elt.referrerpolicy = "no-referrer"; elt.
coords = "0,0,100,100"; var map = document.getelementbyid("mymap"); map.appendchild(elt); // when clicked, the area's link will not send a referrer header. specifications specification status comment referrer policythe definition of 'referrerpolicy attribute' in that specification. candidate recommendation added the referrerpolicy property. browser compatibil...
HTMLAreaElement - Web APIs
: #0095dd; pointer-events: all;} properties inherits properties from its parent, htmlelement, and implements those from htmlhyperlinkelementutils. element.accesskey is a domstring containing a single character that switches input focus to the control. htmlareaelement.alt is a domstring that reflects the alt html attribute, containing alternative text for the element. htmlareaelement.
coords is a domstring that reflects the
coords html attribute, containing coordinates to define the hot-spot region. htmlareaelement.download is a domstring indicating that the linked resource is intended to be downloaded rather than displayed in the browser. the value represent the proposed name of the file. if the name is not a valid filename of the underlying os, browser will adapt it. htmlhype...
Index - Web APIs
ate event on the window. 3113 position api, geolocation api, interface, position, secure context the position interface represents the position of the concerned device at a given time. the position, represented by a coordinates object, comprehends the 2d position of the device, on a spheroid representing the earth, but also its altitude and its speed. 3114 position.
coords api, geolocation api, position, property, secure context,
coords the position.
coords read-only property, a coordinates object, represents a geographic attitude: it contains the location, that is longitude and latitude on the earth, the altitude, and the speed of the object concerned, regrouped inside the returned value. it also contains accuracy information about these values. 31...
Text labels and names - Accessibility
ology — they need alternative text to be able to understand the purpose of an image. examples the following example show a simple image map (taken from h24: providing text alternatives for the area elements of image maps): <img src="welcome.gif" usemap="#map1" alt="areas in the library. select an area for more information on that area." /> <map id="map1" name="map1"> <area shape="rect"
coords="0,0,30,30" href="reference.html" alt="reference" /> <area shape="rect"
coords="34,34,100,100" href="media.html" alt="audio visual lab" /> </map> see the <area> element reference page for a live interactive example. see also <area> h24: providing text alternatives for the area elements of image maps dialogs should be labeled for any container whose contents act as a dialog box ...
HTML attribute reference - HTML: Hypertext Markup Language
ith http-equiv or name depending on the context. contenteditable global attribute indicates whether the element's content is editable. contextmenu global attribute defines the id of a <menu> element which will serve as the element's context menu. controls <audio>, <video> indicates whether the browser should show playback controls to the user.
coords <area> a set of values specifying the coordinates of the hot-spot region. crossorigin <audio>, <img>, <link>, <script>, <video> how the element handles cross-origin requests csp <iframe> specifies the content security policy that an embedded document must agree to enforce upon itself. data <object> specifies the url of the resource. da...
<a>: The Anchor element - HTML: Hypertext Markup Language
ments implicitly provides the same rel behavior as setting rel="noopener". type hints at the linked url’s format with a mime type. no built-in functionality. obsolete attributes charsetobsolete since html5 hinted at the character encoding of the linked url. note: this attribute is obsolete and should not be used by authors. use the http content-type header on the linked url.
coordsobsolete since html5 used with the shape attribute. a comma-separated list of coordinates. nameobsolete since html5 was required to define a possible target location in a page. in html 4.01, id and name could both be used on <a>, as long as they had identical values. note: use the global attribute id instead. revobsolete since html5 specified a reverse link; the opposite of the rel att...
Destructuring assignment - JavaScript
doe' } }; function userid({id}) { return id; } function whois({displayname, fullname: {firstname: name}}) { return `${displayname} is ${name}`; } console.log(userid(user)); // 42 console.log(whois(user)); // "jdoe is john" this unpacks the id, displayname and firstname from the user object and prints them. setting a function parameter's default value function drawchart({size = 'big',
coords = {x: 0, y: 0}, radius = 25} = {}) { console.log(size,
coords, radius); // do some chart drawing } drawchart({
coords: {x: 18, y: 30}, radius: 30 }); in the function signature for drawchart above, the destructured left-hand side is assigned to an empty object literal on the right-hand side: {size = 'big',
coords = {x: 0, y: 0}, radius = 25} = {}. you could have also written the functio...
Basic Transformations - SVG: Scalable Vector Graphics
number is omitted, it is assumed to be equal to the first. complex transformations with matrix() all the above transformations can be expressed by a 2x3 transformation matrix. to combine several transformations, one can set the resulting matrix directly with the matrix(a, b, c, d, e, f) transformation which maps coordinates from a previous coordinate system into a new coordinate system by {xnew
coordsys=axprev
coordsys+cyprev
coordsys+eynew
coordsys=bxprev
coordsys+dyprev
coordsys+f\left{ \begin{matrix} x_{\mathrm{prev
coordsys}} = a x_{\mathrm{new
coordsys}} + c y_{\mathrm{new
coordsys}} + e \\ y_{\mathrm{prev
coordsys}} = b x_{\mathrm{new
coordsys}} + d y_{\mathrm{new
coordsys}} + f \end{matrix} \right. see a concrete example on the svg transform documentation. detailed information about this propert...